How to ignore characters and print only number using unix?

cdfd123 · #1 (**permalink**) 08-03-2007

say
D45H
E67H
G779K
F8888U
T66Y
Y333U

output shud be like
45
67
779
8888
66
333

vino · #2 (**permalink**) 08-03-2007

Quote:

Originally Posted by cdfd123

say
D45H
E67H
G779K
F8888U
T66Y
Y333U

output shud be like
45
67
779
8888
66
333

Code:

tr -d '[:alpha:]' < file.txt

cdfd123 · #3 (**permalink**) 08-03-2007

Quote:

Originally Posted by vino

Code:

tr -d '[:alpha:]' < file.txt

Thanks u very much

robotronic · #4 (**permalink**) 08-03-2007

Put all the lines in a file (say file.txt) and then:

Code:

sed "s/[^0-9]//g" file.txt

or without file:

echo "D45H" | sed "s/[^0-9]//g"

Bye

cdfd123 · #5 (**permalink**) 08-03-2007

Quote:

Originally Posted by robotronic

Put all the lines in a file (say file.txt) and then:

Code:

sed "s/[^0-9]//g" file.txt

or without file:

echo "D45H" | sed "s/[^0-9]//g"

Bye

Thanks u very much

matrixmadhan · #6 (**permalink**) 08-03-2007

Code:

perl -e 'while (<>) { s/[A-Za-z]//g; print }' filename

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